I am experiencing low left back pain and stomach upset. the pain in the back increases if i burp or take a deep breath. stomach noise and flatulence. clear urine and stools are brittle with no sign of blood. problem since 2 weeks now. on omeprazole.

Although...: ...a penetrating stomach ulcer can cause your symptoms, radiation of pain as described may be pancreatico-biliary in origin, or even non-GI related.

Back pain: If the back pain is also affected by bending and twisting, it pin points the back pain to be musculoskeletal and unrelated to the digestive issues. These may be due to irritable bowel syndrome, lactose or gluten intolerance. See a physician who will take a thorough history, perform a physical examination and order appropriate tests in order to make a diagnosis and Referral to a gastroenterologist